Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402831 | Concrete containing aqueous slurry of ground calcium carbonate | Haruya Sawara, Tadashi Yamauchi, Seiji Katayama, Yumiko Takase | 2002-06-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6402831 | Concrete containing aqueous slurry of ground calcium carbonate | Haruya Sawara, Tadashi Yamauchi, Seiji Katayama, Yumiko Takase | 2002-06-11 |